Search found 170 matches
- Wed Nov 24, 2004 9:17 am
- Forum: General Discussion
- Topic: DIY circuit boards
- Replies: 11
- Views: 4967
Re: DIY circuit boards
I agree with mike, I have tried different methods of making pcbs having best results with the laser printer method.
- Wed Nov 24, 2004 4:33 am
- Forum: General Discussion
- Topic: help with MPA-45 pa amp
- Replies: 21
- Views: 7270
Re: help with MPA-45 pa amp
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>Whut!….You back already….what was it …just a little snip/snip…vasectomy <hr></blockquote> If only it where that. Back surgery, made number two at the same level, in electronics terms, I let the magi...
- Mon Nov 22, 2004 5:49 pm
- Forum: General Discussion
- Topic: help with MPA-45 pa amp
- Replies: 21
- Views: 7270
Re: help with MPA-45 pa amp
The output transistors check out ok, I took them out of the circuit to check them, so on to the next step.
- Mon Nov 22, 2004 4:28 pm
- Forum: General Discussion
- Topic: help with MPA-45 pa amp
- Replies: 21
- Views: 7270
Re: help with MPA-45 pa amp
Are these mosfets, Large k on top then D718 when I google for it I get conflicting stuff, on one search I came up with a cross reference 2sb688 which is a pnp power transistor but others have eluded to mosfets. thanks
- Sun Nov 21, 2004 1:57 pm
- Forum: General Discussion
- Topic: help with MPA-45 pa amp
- Replies: 21
- Views: 7270
Re: help with MPA-45 pa amp
Your on, what type of donuts? will post the results tuesday when I get back from surgery.
- Sat Nov 20, 2004 6:40 pm
- Forum: General Discussion
- Topic: help with MPA-45 pa amp
- Replies: 21
- Views: 7270
Re: help with MPA-45 pa amp
This was just something I picked up at a yard sale and I knew it didnt work before I bought it, but I would like to learn more about amplifiers and what better way than by fixing one or rather trying to fix one. I would never buy from the shack, not unless the fate of the whole world was at stake an...
- Sat Nov 20, 2004 1:56 pm
- Forum: General Discussion
- Topic: help with MPA-45 pa amp
- Replies: 21
- Views: 7270
help with MPA-45 pa amp
Hello everyone, I was just wondering if anyone knew where I could get a schematic for a MPA-45 35 watt P.A. amplifier from radio shack, every time I turn it on the main fuse blows, I would like a schematic before I start working on it but if I cant get one then I will try anyway, thank you.
- Tue Nov 16, 2004 5:44 pm
- Forum: General Discussion
- Topic: Velleman Schematic
- Replies: 1
- Views: 1563
Re: Velleman Schematic
Hey, how are you today? try here for the whole manual including the schematic but it is a pdf file so you will need the obligatory adobe reader.<p>webbbbpaggggeeee
- Sat Nov 13, 2004 3:20 pm
- Forum: General Discussion
- Topic: help with a bell
- Replies: 6
- Views: 2714
Re: help with a bell
I am almost ashamed to tell, but since its just us, I paid 2 dollars and 50 cents, I was almost out bid but in the end had the clout to win the bid. I could have bought 7 of them but my wife wouldnt let me, she said we couldnt afford the expenses of building a new shed to hold all the junk that I se...
- Sat Nov 13, 2004 3:12 pm
- Forum: General Discussion
- Topic: Imp Project
- Replies: 4
- Views: 2549
Re: Imp Project
Take a look at radio shack part number 276-720 heres the link sound chip <p>Or you could try this one recorder <p>There are many more at various places on the web that sell kits.<p>I hope this helps, I dont know of an easy way to play back mp3s without an mp3 player or a computer,any one else??
- Fri Nov 12, 2004 8:14 am
- Forum: General Discussion
- Topic: help with a bell
- Replies: 6
- Views: 2714
Re: help with a bell
Thanks, worked like a charm, one thing I didnt count on is the little remote plug I had it plugged into would turn on with my car remote so last night I had left in plugged in and was sound asleep(my head was like 3 feet from it) when my wife got home from work, when she got out of the car and locke...
- Fri Nov 12, 2004 7:40 am
- Forum: General Discussion
- Topic: Imp Project
- Replies: 4
- Views: 2549
Re: Imp Project
Lays barbecue or Pringles? Seriously though, I think we need more info on your project because any type of data can be stored on a "chip", an example is the usb thumb drives, the question is how do you want to retrieve the data and what do you want to do with it when you do.<p>[ November 1...
- Thu Nov 11, 2004 1:51 pm
- Forum: General Discussion
- Topic: help with a bell
- Replies: 6
- Views: 2714
Re: help with a bell
Thanks for the response, I have it working now but with a 7 amp 12 volt supply which is to large to fit in the space available, I will try a 1 amp 12 volt supply tomorrow.
- Thu Nov 11, 2004 10:22 am
- Forum: General Discussion
- Topic: help with a bell
- Replies: 6
- Views: 2714
help with a bell
Hello everyone, I recently won a railroad crossing bell in an auction and I am not sure how to make it work here is a link to some pictures , I have a remote controlled outlet that I would like to plug it in to but I need help figuring what I need to make it work, The schematic says it was designed ...
- Mon Nov 08, 2004 10:39 am
- Forum: General Discussion
- Topic: encoder chip
- Replies: 5
- Views: 2868
encoder chip
Do they make a chip that behaves like a rotary encoder that latches? where you could say switch between Xnumber of outputs by putting pluses on the input pins?